CVE-2026-28318 KEV
7.5
HIGH · CVSS 3.1 · EPSS 1.9% (pctl 79)
Patch first
On CISA KEV — known exploited in the wild, due 2026-06-19.
Description
SolarWinds Serv-U is susceptible to specially crafted POST requests that crash the Serv-U service without authentication using Content-Encoding: deflate. Mitigation steps are provided to secure customer environments in the SolarWinds Trust Center if you are unable to deploy the update
Scoring
| CVSS | 7.5 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| EPSS | 1.94% — more likely to be exploited than 79% of all CVEs |
| Weakness | CWE-400 |
| On CISA KEV | yes — remediate by 2026-06-19 |
| Public exploit | none known |
| Published | 2026-06-04 |
| Last modified | 2026-07-22 |
CISA KEV
| Name | SolarWinds Serv-U Uncontrolled Resource Consumption Vulnerability |
|---|---|
| Added | 2026-06-05 |
| Due | 2026-06-19 |
| Vendor / product | SolarWinds / Serv-U |
| Ransomware use | none reported |
Affected (1)
| Vendor | Product |
|---|---|
| solarwinds | serv-u |
References
→ the Explorer · watch your stack · NVD